— Ann is in hospital. 

— Oh, really? I _____ know. I _____ go and visit her. [ ]

A. didn't; am going to

B. don't; would

C. don't; will

D. didn't; will

关于瓶装燃气充装，以下哪种说法是正确的（）

A.遵守操作规程

B.严禁在储罐和槽车罐体的取样阀上充装燃气

C.可以用槽车向气瓶充装燃气或者气瓶间相互充装燃气